the grid
One cat.
Many tools.
Every tool runs entirely in your browser. No signup, no limits, no tracking. Each one solves exactly one problem and gets out of the way.
No.
Tool
What it does
Status
01
HTML Viewer
Paste HTML from Claude, ChatGPT, or your editor — see it render live. Device frames, share links, zero setup.
Live
Open →
02
Markdown Editor
Write markdown, see clean semantic HTML render next to it. Light and dark preview. Copy the HTML out in one click.
Live
Open →
03
HTML → PDF
Render HTML to a print-perfect PDF in one click. Respects @page rules, headers, footers, page breaks.
Live
Open →
04
JSON Viewer
Paste minified, deep, or messy JSON — read it as a collapsible tree. Format, minify, copy. Browser-only.
Live
Open →
A note on the toolbox.
Every tool here follows the same promise: one page, no signup, no tracking beyond anonymized analytics, no limits, no ads on the tool itself. We built them because we kept wanting them and kept bouncing off walls of signup forms, free-trial timers, and ad-infested SEO farms. Now they just exist. Forever free.
4 tools. No accounts. No limits. Forever free.